Senior Frontend Engineer – AI-Driven React/TS for Fintech

Fullstack; Ciudad de Mendoza; Remote; ARS 92,241,000 - 184,482,000; Full time

Benefits offered by this job

Payment in USD

Remote work

Argentine public holidays

Observability modernization

Professional development

Job summary

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech environment. You will build the Digital Wallet UI and collaborate across product and design to deliver scalable features in a remote LATAM setup.

You will work on AI-assisted coding tools, BFF services, and backend integrations, ensuring accessible, high-performance experiences. This contractor role emphasizes end-to-end ownership and strong UX focus.

Qualifications

• Strong hands-on experience with React, JavaScript, and TypeScript.
• Experience building fintech applications, digital wallets, or payment platforms.
• Solid understanding of UX principles, usability, interaction design, and user-centered development.
• Proven track record of building polished, production-ready user interfaces.
• Experience turning Figma designs or equivalent UX/UI specifications into working applications.
• Practical experience with AI-assisted coding tools such as Cursor, Claude Code, GitHub Copilot, or similar.
• Ability to deliver complete features across frontend and backend boundaries.
• Experience with REST APIs, third-party integrations, and Backend for Frontend (BFF) architectures.

Responsibilities

• Design, develop, and maintain high-quality user interfaces for a Digital Wallet.
• Translate UX/UI designs and product requirements into functional, intuitive, and responsive applications.
• Collaborate with product and design teams to improve user journeys, interactions, and overall usability.
• Own features end to end, from initial requirements through implementation and delivery.
• Use AI‑powered development tools to speed up frontend and full‑stack development.
• Build and maintain Backend for Frontend (BFF) services that support application requirements.
• Implement API integrations and supporting backend functionality when needed.
• Ensure consistency, performance, accessibility, and maintainability across the application.
• Take part in code reviews and help improve development practices.
• Find ways to simplify development workflows through AI‑assisted engineering.

Skills

React

JavaScript

TypeScript

Frontend architecture

UX principles

API integrations

Agile

Remote collaboration

Tools

Electron

Tauri

WebRTC

REST APIs

BFF

Job description

Darwoft is seeking a Senior Frontend / UX Engineer to join a fast-growing fintech environment. You will build the Digital Wallet UI and collaborate across product and design to deliver scalable features in a remote LATAM setup.

You will work on AI-assisted coding tools, BFF services, and backend integrations, ensuring accessible, high-performance experiences. This contractor role emphasizes end-to-end ownership and strong UX focus.